Undo/redo buttons throw an error after upgrading to WebViewer 7.3.3

Technical Support WebViewer
,
4

Steps to reproduce:
1.
add the following line :


 [
  'AnnotationCreateFreeHand',
  'AnnotationCreateLine',
  'AnnotationCreatePolyline',
  'AnnotationCreateArrow',
  'AnnotationCreatePolygonCloud',
  'AnnotationCreateTextHighlight',
  'AnnotationCreateCallout',
  'AnnotationCreateTextStrikeout',
  'TextSelect'
    ].forEach(tool => {
          this.wvInstance.unregisterTool(tool);
    });

  1. use the rectangle / free - text tool

  2. undo it

error should occur

Anthony Chen